Work in progress to switch to a bootstrap theme
Removed frames and added bootstrap css
Content pages now correctly load resources with the base tag
WIP
Reorganized code and finished live preview
Merge branch 'live-preview' into new-theme
Converted <code> blocks of week 1 to live preview
Added livepreview to week2_1
Back button now works
Fixed base for links and images
Small fixes for live bb version
Add difficult exercise
Fix for IE and Firefox not correctly initializing the livepreview on page load
Merge branch 'new-theme'